“The Misson”: Used by “NBC Nightly News” and first aired Sept. 9, 1985. This part of theme was updated in 2004 when Brian Williams took over for Tom Brokaw as anchor of the network’s signature newscast.

“Fugue for Changing Times” was composed for the now-defunct early morning business program “Before Hours.”

“Scherzo for Today” is used for “The Today Show” and has seen several modifications over the years.

“The Pulse of Events” is utilized for “Meet the Press” and breaking news coverage.